Android facebook SDK doing error java.lang.NoClassDefFoundError‎

Question

I have just downloaded the facebook SDK from http://github.com/facebook/facebook-android-sdk I unpack it from git and opened Eclipse. I then created a new project using exis

Answer 1

I had similar problems. I am building one my lib project (with activities) and my main project using this lib. I had these problems. I had added the lib under the Project properties/Android section and at the bottom, as suggested correctly before, but this wasn't enough (note that both projects were compiling good). I had to change the lib project and use the full path to the layout as:

setContentView(com.example.mylib.R.layout.activity_main1);

Note that using just R.layout wasn't enough, although I have defined the:

import com.example.mylib.R;

Valid alternative is however:

import com.example.mylib.R.layout;
setContentView(layout.activity_main1);

Using Eclipse.

hth to someone